import argparse import os import sys from typing import Any, Dict, List, Optional import fatcat_openapi_client from fatcat_openapi_client.models import FileEntity from fatcat_tools import authenticated_api from fatcat_tools.importers import JsonLinePusher from .common import EntityMerger class FileMerger(EntityMerger): """ Combines file entities into a single primary. Merges any existing partial metadata (such as release_ids and URLs). Can choose a primary if necessary. The primary is only updated if needed. TODO: relies on API server to detect "redirect of redirect" situation """ def __init__(self, api: fatcat_openapi_client.ApiClient, **kwargs) -> None: eg_desc = kwargs.get("editgroup_description", "Automated merge of file entities") eg_extra = kwargs.get("editgroup_extra", dict()) eg_extra["agent"] = eg_extra.get("agent", "fatcat_tools.FileMerger") super().__init__(api, editgroup_description=eg_desc, editgroup_extra=eg_extra, **kwargs) self.entity_type_name = "file" def choose_primary_file(self, entities: List[FileEntity]) -> str: """ TODO: could incorporate number of redirected entities already pointing at an entity """ assert entities and len(entities) >= 2 # want to sort in descending order, so reverse=True entities = sorted( entities, key=lambda a: ( # has complete metadata? bool(a.sha256 and a.md5 and a.sha1 and (a.size is not None)), # has releases associated? bool(a.release_ids), # has URLs? bool(a.urls), # has extra metadata? bool(a.extra), # number of release_ids len(a.release_ids or []), ), reverse=True, ) return entities[0].ident def merge_file_metadata_from(self, primary: FileEntity, other: FileEntity) -> bool: """ Compares a primary to an other. If there are helpful metadata fields in the other, copy them to primary, in-place. This is intended to extract any useful metadata from "other" before it gets redirected to "primary". Returns True if the primary was updated, False otherwise. """ updated = False # NOTE: intentionally not including sha1 here for k in ["size", "mimetype", "sha256", "md5"]: if not getattr(primary, k) and getattr(other, k): setattr(primary, k, getattr(other, k)) updated = True if not primary.urls: primary.urls = [] if not primary.release_ids: primary.release_ids = [] if other.extra: if not primary.extra: primary.extra = other.extra updated = True else: for k in other.extra.keys(): if k not in primary.extra: primary.extra[k] = other.extra[k] updated = True for u in other.urls or []: if u not in primary.urls: primary.urls.append(u) updated = True for i in other.release_ids or []: if i not in primary.release_ids: primary.release_ids.append(i) updated = True return updated def try_merge( self, dupe_ids: List[str], primary_id: Optional[str] = None, evidence: Optional[Dict[str, Any]] = None, ) -> int: # currently required for extid validation if not evidence or not (evidence.get("extid_type") and evidence.get("extid")): self.counts["skip-missing-evidence"] += 1 return 0 updated_entities = 0 entities: Dict[str, FileEntity] = dict() eg_id = self.get_editgroup_id() all_ids = dupe_ids.copy() if primary_id: all_ids.append(primary_id) for ident in all_ids: try: entities[ident] = self.api.get_file(ident) except fatcat_openapi_client.ApiException as ae: if ae.status == 404: self.counts["skip-entity-not-found"] += 1 return 0 else: raise if entities[ident].state != "active": self.counts["skip-not-active-entity"] += 1 return 0 if getattr(entities[ident].ext_ids, evidence["extid_type"]) != evidence["extid"]: self.counts["skip-extid-mismatch"] += 1 return 0 if not primary_id: primary_id = self.choose_primary_file(list(entities.values())) dupe_ids = [d for d in dupe_ids if d != primary_id] # ensure primary is not in dupes assert primary_id not in dupe_ids primary = entities[primary_id] primary_updated = False for other_id in dupe_ids: other = entities[other_id] primary_updated = self.merge_file_metadata_from(primary, other) or primary_updated self.api.update_file( eg_id, other.ident, FileEntity( redirect=primary.ident, edit_extra=evidence, ), ) updated_entities += 1 if primary_updated: self.api.update_file(eg_id, primary.ident, primary) updated_entities += 1 return updated_entities def run_merge_files(args: argparse.Namespace) -> None: em = FileMerger(args.api, edit_batch_size=args.batch_size, dry_run_mode=args.dry_run) JsonLinePusher(em, args.json_file).run() def main() -> None: """ Invoke like: python3 -m fatcat_tools.mergers.files [options] """ parser = argparse.ArgumentParser() parser.add_argument( "--host-url", default="http://localhost:9411/v0", help="connect to this host/port" ) parser.add_argument("--batch-size", help="size of batch to send", default=50, type=int) parser.add_argument( "--editgroup-description-override", help="editgroup description override", default=None, type=str, ) parser.add_argument( "--dry-run", action="store_true", help="don't actually commit merges, just count what would have been", ) parser.set_defaults( auth_var="FATCAT_AUTH_API_TOKEN", ) subparsers = parser.add_subparsers() sub_merge_files = subparsers.add_parser("merge-files") sub_merge_files.set_defaults(func=run_merge_files) sub_merge_files.add_argument( "json_file", help="source of merge lines to process (or stdin)", default=sys.stdin, type=argparse.FileType("r"), ) args = parser.parse_args() if not args.__dict__.get("func"): print("tell me what to do!") sys.exit(-1) # allow editgroup description override via env variable (but CLI arg takes # precedence) if not args.editgroup_description_override and os.environ.get( "FATCAT_EDITGROUP_DESCRIPTION" ): args.editgroup_description_override = os.environ.get("FATCAT_EDITGROUP_DESCRIPTION") args.api = authenticated_api( args.host_url, # token is an optional kwarg (can be empty string, None, etc) token=os.environ.get(args.auth_var), ) args.func(args) if __name__ == "__main__": main()